KeyMintAttestation now carries all 17 enforcement tags that AOSP's
authorize_create and buildKeyDescription paths expect. AttestationBuilder
populates BLOCK_MODE as SET OF INTEGER, gates version-guarded tags
(RSA_OAEP_MGF_DIGEST >=100, ROLLBACK_RESISTANCE >=3, EARLY_BOOT_ONLY >=4),
computes INCLUDE_UNIQUE_ID via HMAC-SHA256 per KeyMint HAL spec, and
gates AAID on challenge presence.
CertificateGenerator uses AOSP cert validity defaults (epoch notBefore,
9999-12-31 notAfter), returns ServiceSpecificException(-75) for missing
keybox, and adds RSA exponent null safety.
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f06cb30b40